cord-776 create build / runtime containers for autmation uservices
Change-Id: I246973192adef56a250ffe93a5f65fff488840c1
diff --git a/automation/vendor/gopkg.in/juju/names.v2/volume.go b/automation/vendor/gopkg.in/juju/names.v2/volume.go
new file mode 100644
index 0000000..2c1fd1b
--- /dev/null
+++ b/automation/vendor/gopkg.in/juju/names.v2/volume.go
@@ -0,0 +1,76 @@
+// Copyright 2014 Canonical Ltd.
+// Licensed under the LGPLv3, see LICENCE file for details.
+
+package names
+
+import (
+ "fmt"
+ "regexp"
+ "strings"
+)
+
+const VolumeTagKind = "volume"
+
+// Volumes may be bound to a machine, meaning that the volume cannot
+// exist without that machine. We encode this in the tag to allow
+var validVolume = regexp.MustCompile("^(" + MachineSnippet + "/)?" + NumberSnippet + "$")
+
+type VolumeTag struct {
+ id string
+}
+
+func (t VolumeTag) String() string { return t.Kind() + "-" + t.id }
+func (t VolumeTag) Kind() string { return VolumeTagKind }
+func (t VolumeTag) Id() string { return volumeTagSuffixToId(t.id) }
+
+// NewVolumeTag returns the tag for the volume with the given ID.
+// It will panic if the given volume ID is not valid.
+func NewVolumeTag(id string) VolumeTag {
+ tag, ok := tagFromVolumeId(id)
+ if !ok {
+ panic(fmt.Sprintf("%q is not a valid volume ID", id))
+ }
+ return tag
+}
+
+// ParseVolumeTag parses a volume tag string.
+func ParseVolumeTag(volumeTag string) (VolumeTag, error) {
+ tag, err := ParseTag(volumeTag)
+ if err != nil {
+ return VolumeTag{}, err
+ }
+ dt, ok := tag.(VolumeTag)
+ if !ok {
+ return VolumeTag{}, invalidTagError(volumeTag, VolumeTagKind)
+ }
+ return dt, nil
+}
+
+// IsValidVolume returns whether id is a valid volume ID.
+func IsValidVolume(id string) bool {
+ return validVolume.MatchString(id)
+}
+
+// VolumeMachine returns the machine component of the volume
+// tag, and a boolean indicating whether or not there is a
+// machine component.
+func VolumeMachine(tag VolumeTag) (MachineTag, bool) {
+ id := tag.Id()
+ pos := strings.LastIndex(id, "/")
+ if pos == -1 {
+ return MachineTag{}, false
+ }
+ return NewMachineTag(id[:pos]), true
+}
+
+func tagFromVolumeId(id string) (VolumeTag, bool) {
+ if !IsValidVolume(id) {
+ return VolumeTag{}, false
+ }
+ id = strings.Replace(id, "/", "-", -1)
+ return VolumeTag{id}, true
+}
+
+func volumeTagSuffixToId(s string) string {
+ return strings.Replace(s, "-", "/", -1)
+}